Flights from St. Louis to National City

Cheapest flights from St. Louis

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Nov 1 - Sat, Nov 8

STL

Lambert-St. Louis Intl.

SAN

San Diego Intl.

$230 Roundtrip, found 2 days ago

$230

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Sat, Nov 1 from Lambert-St. Louis Intl. to San Diego Intl., returning Sat, Nov 8, priced at $230 found 2 days ago

Sat, Nov 1 - Fri, Nov 7

STL

Lambert-St. Louis Intl.

SAN

San Diego Intl.

$232 Roundtrip, found 2 days ago

$232

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Sat, Nov 1 from Lambert-St. Louis Intl. to San Diego Intl., returning Fri, Nov 7, priced at $232 found 2 days ago

Thu, Oct 30 - Fri, Nov 7

STL

Lambert-St. Louis Intl.

SAN

San Diego Intl.

$234 Roundtrip, found 2 days ago

$234

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Thu, Oct 30 from Lambert-St. Louis Intl. to San Diego Intl., returning Fri, Nov 7, priced at $234 found 2 days ago

Thu, Jun 26 - Wed, Jul 2

STL

Lambert-St. Louis Intl.

SAN

San Diego Intl.

$240 Roundtrip, found 4 days ago

$240

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Thu, Jun 26 from Lambert-St. Louis Intl. to San Diego Intl., returning Wed, Jul 2, priced at $240 found 4 days ago

Sat, Nov 1 - Sun, Nov 9

STL

Lambert-St. Louis Intl.

SAN

San Diego Intl.

$241 Roundtrip, found 2 days ago

$241

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Sat, Nov 1 from Lambert-St. Louis Intl. to San Diego Intl., returning Sun, Nov 9, priced at $241 found 2 days ago

Thu, Oct 30 - Sun, Nov 9

STL

Lambert-St. Louis Intl.

SAN

San Diego Intl.

$243 Roundtrip, found 2 days ago

$243

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Thu, Oct 30 from Lambert-St. Louis Intl. to San Diego Intl., returning Sun, Nov 9, priced at $243 found 2 days ago

Thu, Jun 26 - Fri, Jul 4

STL

Lambert-St. Louis Intl.

SAN

San Diego Intl.

$250 Roundtrip, found 2 hours ago

$250

Roundtrip

found 2 hours ago

Select Frontier Airlines flight, departing Thu, Jun 26 from Lambert-St. Louis Intl. to San Diego Intl., returning Fri, Jul 4, priced at $250 found 2 hours ago

Wed, Jun 25 - Fri, Jul 4

STL

Lambert-St. Louis Intl.

SAN

San Diego Intl.

$270 Roundtrip, found 2 hours ago

$270

Roundtrip

found 2 hours ago

Select Frontier Airlines flight, departing Wed, Jun 25 from Lambert-St. Louis Intl. to San Diego Intl., returning Fri, Jul 4, priced at $270 found 2 hours ago

Thu, Jun 26 - Thu, Jul 3

STL

Lambert-St. Louis Intl.

SAN

San Diego Intl.

$290 Roundtrip, found 2 hours ago

$290

Roundtrip

found 2 hours ago

Select Frontier Airlines flight, departing Thu, Jun 26 from Lambert-St. Louis Intl. to San Diego Intl., returning Thu, Jul 3, priced at $290 found 2 hours ago

Wed, Jun 25 - Thu, Jul 3

STL

Lambert-St. Louis Intl.

SAN

San Diego Intl.

$310 Roundtrip, found 2 hours ago

$310

Roundtrip

found 2 hours ago

Select Frontier Airlines flight, departing Wed, Jun 25 from Lambert-St. Louis Intl. to San Diego Intl., returning Thu, Jul 3, priced at $310 found 2 hours ago

Tue, Nov 4 - Wed, Nov 5

STL

Lambert-St. Louis Intl.

SAN

San Diego Intl.

$318 Roundtrip, found 2 days ago

$318

Roundtrip

found 2 days ago

Select Hawaiian Airlines flight, departing Tue, Nov 4 from Lambert-St. Louis Intl. to San Diego Intl., returning Wed, Nov 5, priced at $318 found 2 days ago

Tue, Jul 1 - Tue, Jul 8

STL

Lambert-St. Louis Intl.

SAN

San Diego Intl.

$338 Roundtrip, found 4 days ago

$338

Roundtrip

found 4 days ago

Select Delta flight, departing Tue, Jul 1 from Lambert-St. Louis Intl. to San Diego Intl., returning Tue, Jul 8, priced at $338 found 4 days ago

Tue, Nov 4 - Tue, Nov 4

STL

Lambert-St. Louis Intl.

SAN

San Diego Intl.

$349 Roundtrip, found 2 days ago

$349

Roundtrip

found 2 days ago

Select Delta flight, departing Tue, Nov 4 from Lambert-St. Louis Intl. to San Diego Intl., returning Tue, Nov 4, priced at $349 found 2 days ago

Thu, Jun 26 - Sat, Jul 5

STL

Lambert-St. Louis Intl.

SAN

San Diego Intl.

$370 Roundtrip, found 2 hours ago

$370

Roundtrip

found 2 hours ago

Select Frontier Airlines flight, departing Thu, Jun 26 from Lambert-St. Louis Intl. to San Diego Intl., returning Sat, Jul 5, priced at $370 found 2 hours ago

Tue, Jul 1 - Fri, Jul 4

STL

Lambert-St. Louis Intl.

SAN

San Diego Intl.

$379 Roundtrip, found 2 hours ago

$379

Roundtrip

found 2 hours ago

Select Delta flight, departing Tue, Jul 1 from Lambert-St. Louis Intl. to San Diego Intl., returning Fri, Jul 4, priced at $379 found 2 hours ago

Wed, Jun 25 - Sat, Jul 5

STL

Lambert-St. Louis Intl.

SAN

San Diego Intl.

$390 Roundtrip, found 2 hours ago

$390

Roundtrip

found 2 hours ago

Select Frontier Airlines flight, departing Wed, Jun 25 from Lambert-St. Louis Intl. to San Diego Intl., returning Sat, Jul 5, priced at $390 found 2 hours ago

Tue, Jul 1 - Wed, Jul 2

STL

Lambert-St. Louis Intl.

SAN

San Diego Intl.

$439 Roundtrip, found 2 hours ago

$439

Roundtrip

found 2 hours ago

Select United flight, departing Tue, Jul 1 from Lambert-St. Louis Intl. to San Diego Intl., returning Wed, Jul 2, priced at $439 found 2 hours ago

Sat, Jun 28 - Thu, Jul 3

STL

Lambert-St. Louis Intl.

SAN

San Diego Intl.

$468 Roundtrip, found 2 hours ago

$468

Roundtrip

found 2 hours ago

Select American Airlines flight, departing Sat, Jun 28 from Lambert-St. Louis Intl. to San Diego Intl., returning Thu, Jul 3, priced at $468 found 2 hours ago

Sat, Jun 28 - Thu, Jul 3

STL

Lambert-St. Louis Intl.

SAN

San Diego Intl.

$507 Roundtrip, found 2 hours ago

$507

Roundtrip

found 2 hours ago

Select Alaska Airlines flight, departing Sat, Jun 28 from Lambert-St. Louis Intl. to San Diego Intl., returning Thu, Jul 3, priced at $507 found 2 hours ago

Sat, Jun 28 - Thu, Jul 3

STL

Lambert-St. Louis Intl.

CLD

McClellan-Palomar

$522 Roundtrip, found 2 hours ago

$522

Roundtrip

found 2 hours ago

Select American Airlines flight, departing Sat, Jun 28 from Lambert-St. Louis Intl. to McClellan-Palomar, returning Thu, Jul 3, priced at $522 found 2 hours ago